Thousands of people across the world celebrated spliffs on 420 day (April 20 ... Barney Warf from the University of Kansas. The plant is believed to have first emerged in grassland plains ...

Theories on how 420 came to be a celebration of cannabis culture. April 20, 2010 — -- Has someone wished you a Happy 420 today ... and the best day to plant cannabis, according to Snopes.

The plant has been making waves recently as former ... Another little known fact is the origin of 420, which actually came about in 1971 as a group of California high school students would meet ...

You've probably seen people sharing 420 and wishing others a Happy 420 day ... organised to meet at 4.20pm to find a plot of land to plant a cannabis plant. The group is called The Waldos ...